PCA

[COMPUTER PROGRAMS,] MOTION PICTURE FILMS, [PHOTOGRAPHIC TRANSPARENCIES AND SLIDES] OF USES OF CONCRETE AND HYDRAULIC CEMENT

[MANUALS FOR USING COMPUTER PROGRAMS,] INSTRUCTIONAL BOOKS AND PUBLICATIONS, AND RESEARCH REPORTS TREATING USES AND METHODS OF USING CONCRETE AND HYDRAULIC CEMENT

DISSEMINATING INFORMATION AFFECTING THE USE OF CONCRETE AND HYDRAULIC CEMENT TO PROMOTE THE USE OF THESE MATERIALS BY OTHERS

RESEARCHING AND DEVELOPING INFORMATION AFFECTING THE USES OF AND METHODS OF USING CONCRETE AND HYDRAULIC CEMENT AND PROVIDING THE RESULTS THEREOF TO OTHERS